I doubt you could build them for less than $50.
Hardware will run you almost $25.
Finding the right sleeves may be difficult to fit the bushings correctly.
The shackles aren't straight either, they have a double bend in them, which requires a very large bender to make precisely.
Then you have to consider the time invested to make them...
Good luck. The measurments you need are already on your Xterra. Just add 2 inches hole to hole if you want a 1" lift (they sit at about a 45 degree angle).
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